<?php

namespace app\common\model;

use think\Env;
use think\Model;


class Activity extends Model
{

    

    

    // 表名
    protected $name = 'activity';
    
    // 自动写入时间戳字段
    protected $autoWriteTimestamp = 'integer';

    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = false;
    protected $deleteTime = false;

    // 追加属性
    protected $append = [

    ];
    

    







    public function form()
    {
        return $this->belongsTo('Form', 'form_id');
    }

    public function admin()
    {
        return $this->belongsTo('Admin', 'admin_id');
    }

    public function discountCoupon()
    {
        return $this->hasMany('DiscountCoupon', 'activity_id', 'id');
    }

    public function getBannerAttr($value){
        if($value){
            return cdnurl($value,true);
        }
        return '';
    }
}
